wyuenho/backgrid — pull request #541 by theinterned (2014-11-12 03:35:39+00:00)
Title: gracefully handle strings passed to the NumberFormatter

I was getting `undefined is not a function` errors due to my model number attr being represented as a string. e.g.

```javascript
model.get('count') //-> "33"
```

A simple fix would just be to parseFloat the passed 'number' to ensure that it is a number.

I don't see any issue with this change ...